hondaeg8

I just installed a turbo kit and I was wondering about the dumptube.

Is it supposed to throw out air all the time? If I put my hand under the dumptube, I feel air coming out of it, is that normal?

Fitti

no there should not be air coming out all the time from the dump tube. It's exactly as the name implies. It dumps exhaust from the wastegate when the waste gate opens. In other time it should be closed. SOunds as if you wastgate may not be closing completely

hondaeg8

so the WG is no good?

as soon as i turn on the car, air starts coming out of the dumptube. when i rev the motor, more air comes out the dumptube.

b18sihatch

sounds like the WG is stuck open, what type of wg is it?

air should only come ouit when its ''dumped'' sounds like your wastegate is dumping air all the time. when its not supposed to

hondaeg8

tial 38mm WG.

anyway to get it unstuck?

AbitAvenger

take it off and take a pic so we can see if its actually stuck

what psi spring is in it

hondaeg8

i'll be able to take it off later cause i'm at work right now.

if it is stuck, would i need to buy a new one?

it has the big red spring in it

hondaeg8

okay, i was doing some research and i noticed some people didn't install a "ring" and they had the WG leak out the dumptube.

when i got my turbo kit, i remember a ring in the kit and i didn't know what it was for, so i just put it aside.

where does the ring go cause now i'm betting that ring not installed is what is causing my WG to be open at idle.

thelate1

the "ring" your refering too is known as the fire ring. it should be installed on the bottom of the wastegate. it will stick out a little when installed, but will provide a tight seal once the wastegate is bolted down.

hth.........

RCautoworks

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thelate1 &raquo;</TD></TR><TR><TD CLASS="quote">the "ring" your refering too is known as the fire ring. it should be installed on the bottom of the wastegate. it will stick out a little when installed, but will provide a tight seal once the wastegate is bolted down.

hth......... </TD></TR></TABLE>

Um thats not the fire ring, this is



Think you are talking about the valve seat

Fitti

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 90blackcrx &raquo;</TD></TR><TR><TD CLASS="quote">

Um thats not the fire ring, this is



Think you are talking about the valve seat</TD></TR></TABLE>

That's a gasket and not the fire ring. The fire ring is what was stated earlier that goes into the bottom of the wastegate

hondaeg8

i know i have the gasket on there, but i don't have that metal ring on there.


so would that be causing the leak through the dumptube?

pgmatt

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondaeg8 &raquo;</TD></TR><TR><TD CLASS="quote">i know i have the gasket on there, but i don't have that metal ring on there.


so would that be causing the leak through the dumptube?


</TD></TR></TABLE>

Yes it is.Install it.

hondaeg8

i will install it when i get home.

could this cause a loss in power and me not be able to hit full boost?

Fitti

hell yeah. If it is not sealing then you can't really build boost. Or it builds really slowly.

Once you put in on you should notice a difference

hondaeg8

yeah, it seemed like it was taking a bit too long to build boost.

i didn't have the ring on. i had it in my tool box so i just put it on, but its too late to drive it.

boosted k20

the car will still build boost if there was no fire ring in the wategate, it will just spool up a little later than normal. the car will be alot quiter once u put the fire ring in there

EddieCRX

I did the same thing as you, left out the valve ring, in fact I thought it was a spare flange ops
Took a few mins to work out why the WG was leaking, removed the WG took it apart and fitted the ring, no problems since.

By the way Q?

What’s better, running the dump tube under the car to vent to atmosphere or plumbing it into the down pipe? As far I can tell the only advantage would be the sound?

Fitti

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EddieCRX &raquo;</TD></TR><TR><TD CLASS="quote">
What’s better, running the dump tube under the car to vent to atmosphere or plumbing it into the down pipe? As far I can tell the only advantage would be the sound?
</TD></TR></TABLE>

I heard that you could possibly lose horse power depending on how it's plumbed back into the exhaust.

RCautoworks

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Fitti (Godzilla) &raquo;</TD></TR><TR><TD CLASS="quote">
That's a gasket and not the fire ring. The fire ring is what was stated earlier that goes into the bottom of the wastegate
</TD></TR></TABLE>

http://www.turboneticsinc.com/pa_gaskets.htm

hondaeg8

i'm running a Drag kit with a t3/t4 turbo and it just seemed like it too a little longer than expected for the turbo to spool up. like my car really wouldn't start moving til middle of third gear or something.

i too thought it was an extra flange and just put the ring aside

thelate1

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondaeg8 &raquo;</TD></TR><TR><TD CLASS="quote">i know i have the gasket on there, but i don't have that metal ring on there.


so would that be causing the leak through the dumptube? </TD></TR></TABLE>

i knew he wasn't talking about the gasket......

b18sihatch

most dumptubes you see are mainly atmosphere some people do decide to dump back into the exhaust

RCautoworks

Valve seat


https://honda-tech.com/zerothread?id=1435005

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thelate1 &raquo;</TD></TR><TR><TD CLASS="quote">

i knew he wasn't talking about the gasket...... </TD></TR></TABLE>

Fire ring according to
http://www.turboneticsinc.com/pa_gaskets.htm